!431 [openEuler-1.0-LTS] Add Zhaoxin rng driver

Merge Pull Request from: @leoliu-oc 
 
This driver provides kernel-side support for the Random Number Generator hardware
found on Zhaoxin based motherboards.

Issue
https://gitee.com/openeuler/kernel/issues/I6J139

Test
N/A

Knowe Issue
N/A

Default config change
N/A
 
 
Link:https://gitee.com/openeuler/kernel/pulls/431

 

Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>